Systems and methods are provided and include a radar system that transmits radar signals within frames having radar chirps. The radar chirps have a stepped frequency waveform such that the initial and end frequencies are changed for subsequent chirps and have a constant pulse repetition period between chirps. The radar system performs range fast Fourier transform (FFT) processing and Doppler FFT processing on receive values corresponding to reflected signals from an object. The radar system estimates range and range-rate information about the object based on range FFT values and Doppler FFT values using a signal model and determines information about the object based on the estimated range and range-rate information. The signal model includes (1) a fast-time dimension term corresponding to samples within a radar chirp and (2) a slow-time dimension term corresponding to individual radar chirps within the frame, with the slow-time dimension term including a second degree term.


    Access

    Download


    Export, share and cite



    Title :

    Range And Range Rate Estimation For Stepped Frequency Waveform With Constant Pulse Repetition Period


    Contributors:
    GAO BOYI (author)

    Publication date :

    2025-03-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G01S RADIO DIRECTION-FINDING , Funkpeilung / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion




    Low Time Jitter Optical Pulse Generator Module with Wide Range Tunable Repetition Rate

    Lasers and Electro-optics Society (Institute of Electrical and Electronics Engineers) | British Library Conference Proceedings | 2004


    High Range Resolution Profile Estimation via a Cognitive Stepped Frequency Technique

    Aubry, Augusto / Carotenuto, Vincenzo / De Maio, Antonio et al. | IEEE | 2019


    Range Sidelobe Suppression for Randomized Stepped-Frequency Chirp Radar

    Liu, Shuai / Cao, Yunhe / Yeo, Tat-Soon et al. | IEEE | 2021